Automatic grain-weigher



(No iModeL) v H. M'. FULWIDER. AUTOMATIC GRAIN WEIG-HER.

No. 490,957. I -Patented Jan. 31, 1893.

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PATENT HORACE M. FULWIDER, OF REDMON, ILLINOIS.

AUTOMATIC GRAIN-WEIGHER.

SPECIFICATION forming part of Letters Patent No. 490,957, dated January31, 1893.

' Application filed October 10, 1892. Serial No. 448,427- (No model.)

To all whom it may concern.-

Be it known that I, HORACE M. FULWIDER, of Redmon,in the county of Edgarand State of Illinois, have invented certain new and use- 1' ulImprovements in Automatic Grain-Weigh ers; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawings, whichform part of this specification.

Myiuvention relates to an improvement in automatic grain weighers; andit consists in the novel combination and arrangement of parts which willbe fully described hereinafter, and more particularly referred to in theclaims.

The object of my invention is to provide an improved mechanism whichwill automatically weigh grain while running from a bin or elevatorwithout interrupting its continuous flow.

Referring to the accompanying drawings, Figure 1 is a side elevation ofmy improved weigher. Fig. 2 is a plan view. Fig. 8, is a verticalsectional View of the weigher box.

A, designates the upper end of an elevator into which grain is beingcarried from a separator or other source and secured to opposite sidesthereof are the straps B, having projecting ends as shown. Fulcrumed onthese straps is the graduated scale beam or yoke O, the rear end of thelast mentioned device extending around the rear portion of the elevatorand around on the opposite side as shown in Fig. 2, thus forming theyoke above mentioned. On the free ends of this yoke are the knife edgebearings D and supported thereon by means of the straps E, is theweigher box F, the latter being held by the said yoke ends immediatelyunder the discharge A, of elevator A, as shown.

Supported by and secured to brackets G, on opposite sides of theelevator A, are the arms H, which extend on opposite sides of the box Fand formed in their outer ends are the eyes I.

J, represents bars which are pivotally secured at their ends to theinner edges of the sides of the box F, and which extend outward towardthe outer edges of the box and supported by these outer ends are theweights K. Projecting outward from the bars J, are the pins L, whichextend into the openings or eyes I, in the outer ends of the arms H.

Extending across the transverse center line of the interior of the boxF, is the axial rod M, on which is mounted the movable partition N. Thispartition is of suiiicient length to extend from one side of the topopening of the box to the opposite side of the bottom opening as shownin Fig. 3. Secured to the lowerend of this partition is the narrow horizontal plate 0, which effectually closes the lower end of the apartmentin which the grain happens to be flowing, as shown.

To the outer projected ends of the axial rod M, are secured thevertically extending pointed arms P, which are in line with thepartition within. Secured to the bars J, in a vertical line with theaxle M, are the rollers Q. The outer free ends of the bars J, aresupported on brackets J. The lower end of the box F, is looselyconnected to the elevator by the link R, which constitutes a brace forthe same.

S, designates a bracket secured to the edge of the elevator A, forsupporting the end of the yoke C. Projecting vertically from thisbracket is the hook arm T, which prevents the yoke from moving too farvertically. The weights C,may be moved freely on the beam ends of theyoke C, and thus predetermine the amount of grain to be weighed at atime in the box F.

The mechanical construction of my improved weigher having thus been madeknown I will proceed to describe its operation. The partition N, is setat all times to confine the infiowing grain in either one side or theother of the box. The device being adjusted to weigh a given amount, thegrain is allowed to issue from the discharge A, of the elevator A, intothe box F. 'When suificient grain has been run into the box to overcomethe weights on the weighing yoke or beams G, the latter begin to risewhile the box F, descends. The bars J, move bodily with the box untilthe pins L, carried thereby reach the bottoms of the eyes I, in theouter ends of the arms H. A fulcrum point is thus formed, the pivotedends of the said bars continuing the downward movement with the boxwhile their weighted outer ends ascend. This movement continues untilthe rollers Q, against which the arms P, bear, are raised above the saidarms, releasing the latter and allowing them to yield to the pressure ofthe grain on the lower portion of the partition N. The latter is thusshifted to the opposite side of the box with the arms P, on the oppositesides of the rollers Q. The weights K, on the outer ends of the arms J,bear the latter down and with them the rollers Q, on the sides of thearms P. From this description it will be seen that the rollers Q, andthe arms P, constitute the locking mechanism, while the arms H, witheyes 1, together with the projecting pins L, on the bars J, constitutethe trip.

By this very simple mechanism which is thoroughly automatic in itsoperation it will be seen that the weighing can be done without stoppingfor a momentthe flow of grain from the elevator.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is,-

1. The combination of a support, scale beams fulcrumed thereto, aweigher box supported by the beams an axial rod extending through thebox, a shifting partition secured thereto, arms secured to the outerends of the said rod, bars pivoted to one side of the box center, stopsprojecting from the bars which are adapted to engage either one side orthe other of the said arms, and a tripping mechanism which operates thesaid bars, substantially as shown and described.

2. The combination of a support, scale beams fulcrumed thereto, aweigher box supported by the said beams, an axial rod extendingtherethrough, a partition on said rod, arms secured to the projectedends of the rod, bars pivoted to one side of the box center, stops onthe bars which engage the said arms, and arms extending from the supportwhich engage the same bars, substantially as shown and described.

3. The combination of an elevator, scale beams fulcrumed thereto, aweigher box supported by the beams beneath the discharge of theelevator, a shifting partition within the box, an axial rod upon whichsaid partition is mounted having extended ends, arms secured to saidends which extend in line with the partition, bars pivoted at their endsto one side of the box and which extend across the same being weightedat their opposite free ends, rollers secured to the said bars in avertical line with the axial rod and which engage said arms, stops L,projecting from the bars, and arms H, projecting from the elevatorhaving eyes in their outer ends into which the said stopsproject,substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

HORACE M. FULWIDER.

Witnesses:

O. C. BEAM, WILLARD GORDON.

